Air bag light
 

I wrecked my 01. Took a bone jarring impact to the front end at about 45mph. I got no airbag deployment but my seat belt fired. I drove the car home a couple blocks away with no idiot lights. The car has sat in my driveway while I collect parts for repair. Now when I reconnected the battery and started it I get the airbag light. What does this mean? Can I just replace the seatbelt and do the body work and be on my way or do I need to replace the computer too? Any insight would be helpful.

Thanks,

Jason